Went back to the track with drag radials. Ran 4-5 times. Way too many cars. Best of 8.33 @86.00. 2.032 sixty foot. I really thought DR's meant smash gas and hook. ummm no. I did a few burnouts but it didnt help. 8.3's equal 12.7's-12.8's. Car def has a 8.2 in it maybe even a 8.1 if i can get a 1.8 sixty. I was absolutely wrecking the light. At least im doing something right. Enjoy the vids.


This is the 335i. Guy beats me by about a foot or 2 as you can see in the vid. and runs .3 sec faster? reaction time was nearly identical with me having a .1 advantage. Never mind he wins by .2ish. Oh well, this same guy was *** raping me last few times i went so there is def an improvement.




TL powered civic hatch. Yes, its V6 powered. he has the hood cutout to fit the engine. Very backyardish, but fast nonetheless.

 

looked good... cant Waite to get back out racing

 

The cooler weather tends to spoil your traction. I warm my drag radials up for no less than 10 seconds and yes, I smash it! Ran consistent 7.8's in the 8th 2 weeks ago, and will be at the track again tomorrow.

 

Thanks for the post great videos and loved the show down between you and the 335. I have good races with my friends tuned 135i. Quick cars off the line

 

What kind of DR's are you running and what tire pressure? Also, are you increasing the front tire pressure to reduce rotational friction?

 

valuable info above also lowering or raising the temps in your front tires will help you at the tree.

 

how does this help and how do you raise or lower the temps in front?

 

It has to do with your reaction times. If your slow off the line your raise your tire pressure, and lower if your too quick. So not only do you monitor your rear pressure according to DA, but your front according to yourself that day. I have at least 3 trip 0's so far that I can remember. That's .000 on the tree. My fronts would be anywhere from 26-32 psi depending on my skills that day. My rear Hoosier and MT's were always around 15 psi. Hope this helps. Glad to hear you have a rocket now. Enjoy the duals.

 

ok you wrote temps but meant pressures. i was trying to figure out how you raised or lowered the temps !!
i really enjoy the duals evan. if only the were designed to look like my oem's but flowed like they do!!

 

sorry the temps vary the pressure hour to hour and when bracket racing every thousandth of a second counts. It's a little confusing but when you get it all sorted out, these little cars can put alot of cars on the trailer. Glad you like them can't say enough of Rob's products. Can't wait to see your timeslips come spring.

 

ok now im getting it!! you are chasing the temps not making the temps chase the car. as the temps of the track and atmosphere rise or lower the tire pressure changes. something new to add to my checklist! so much to do while waiting to stage who has time for lunch anymore!!

 

Yep now you got it. Using the PA2 helps get up to the minute DA. Crucial IMO when comparing time slips.

 

I've ran against a couple of 335i's and couldn't for the life of me figure out how a car with 500 more lbs. and only 300 horsepower and lbs. ft. of torque could actually keep up with an SRT6. To make matters worse they're faster from 100+ than we are (barely).

I found out that BMW pulled the same stunt japanese manufacturers did in the 90's with the Supra and severely underrated the horsepower. Based on the test numbers alone they're pushing about 400-420 horsepower with similar torque. I guess they hope people don't realize they can get a car almost as fast as a M3 for $25,000 less.

BTW to add some numbers behind what I'm talking about; a stock BMW 335i like the one you raced claims a curb weight of 3593 lbs. with a horsepower and torque rating both at 300. Car and driver performed a test and claimed a 4.9 0-60, just a tenth under our cars which weigh about 500 lbs. less for the coupe and been shown to have 350 horsepower. I used a horsepower calculator to come up with that car actually having to have 400 horsepower. The same calculator came up with 350 horsepower for our cars. As for the top end it has a lot to do with our cars having really bad gearing in 4th and 5th more than actual power, if we could tune our top end gearing then we would pull hard away from those boats due to weight and aerodynamics alone.

One more edit: I found some dyno numbers from a stock 335i that show 384hp at the wheels, so I guess my original assumption of them having 400hp is right. They probably give SRT-8 drivers the shock of their life when they get left in the dust by a non-M BMW 3 series.

 

Man, I hate it when 335i's walk me when I hit 4th! Damn you 1:1 ratio!


Btw, didn't Eric Stoddard's original design of the crossfire have a drag coefficient similar to a truck?

 

That wouldn't surprise me since our cars do heavily resemble the Sebring more than I would like. Then again compared to the Hummer front of a 335 it's hard to believe they would be any better but I'm no expert in auto aerodynamics (although I did take many courses in aeronautics and aerospace science).

 

They do not have 384whp stock.(unless its the newer one since they have an overboost feature but still) . Stockers run mid 13's at 104-105. Which is about right. They are underrated but not 100 hp. maybe like 50. remember they come manual and their six speed auto probably shifts plenty faster than our slow 5 speeds. so thats where the advantage comes into play. Especially at higher speeds. I wouldnt be surprised if a stock manual ran a low 13 since can get a higher launch. But i dont think ive seen a low 13 from a stock one.

 

Power to weight means it should be pushing around 400. I could be off by about 20-30 horses but our cars rate 350 as well and those cars are fully capable of running equal 0-60 times and from what I can tell are only about half a second off from our quarter mile at worst. As far as I can tell they're usually within .2 seconds. A car with equal horsepower and a 500lbs disadvantage couldn't possibly run almost the exact same times unless in this case it was pushing very close to 400. I of course haven't driven one and base it on math using power to weight ratios.

Edmunds pull a 4.8 0-60 and 13.3 quarter, you're telling me that's possible with 500 more lbs and the same power? Also they were shocked since based on the ratings from BMW it should have only been capable of a 5.5 second 0-60.

 

Mag averages are between 13.3-13.7. So its somewhere in there. While i do agree they are underrated ( ALOT of cars are) the manual transmission has a lot to do with their stock quarter mile times. Which is why u see them running decent times for the hp they are advertised to have. Think about it if the srt-6 was a 6 speed one could easily knock of 2 or 3 tenths in the quarter mile compared to 5 speed auto. My celica gts ran 14.5's and was a 6 speed. The auto version would never even get into the 15's stock. Same weight and hp. Gearing can make a world of difference.